Axially symmetric Proca-Higgs stars
Vladimir Dzhunushaliev, and Vladimir Folomeev
arXiv:2109.11138 [gr-qc]
Gr@v Journal Clubs for 2021/22 have started. Researchers/students from other groups/institutions wanting to attend (they are online) feel free to contact us.
K-essence is a cosmologically relevant scalar-tensor theory that involves first-order derivative self-interactions, which pass all existing gravitational wave bounds and provides a screening mechanism. In this talk, I will present our results about the effect of this screening mechanism in non-linear stellar oscillations and gravitational collapse by using numerical relativity simulations.
Haroldo Lima Junior, Ph.D. student at the U. Federal do Pará, Brazil, advised by Prof. Luis Crispino, is visiting our group for 6 months (Sep 2021 - Mar 2022), under a CAPES "doutorado sandwich" funding.
Rodrigo Vicente, a Ph.D. student co-advised in our group, successfully defended his Ph.D. thesis on "The Gravity of Classical Fields and its effect on the Dynamics of Gravitational Systems", at IST Lisbon on September 21st 2021. Congratulations Rodrigo!
The COST Advanced School on the "Physics of Dark Matter and Hidden Sectors" will take place in Lund, Sweeden, from October 18-21st 2021. Gr@v members C. Herdeiro, A. Morais and F. Freitas are amongst the invited lecturers.
Testing the Black-Hole Area Law with GW150914
Maximiliano Isi, Will M. Farr, Matthew Giesler, Mark A. Scheel, and Saul A. Teukolsky
Phys. Rev. Lett. 127, 011103
The Gr@v paper "Kerr black holes with scalar hair" reached the landmark of 500 citations in the INSPIRE database.
The Spanish-Portuguese Relativity Meeting 2021 took place online from 13-16 September 2021, organized by our group. With over 200 registered participants and 95 talks (invited, contributed and one public lecture), the meeting exhibited the interdisciplinarity of this thriving field. Talk slides can be found in the program webpage. We hope to have a face to face EREP 2022!
E. Barausse (SISSA, Italy) and C. Herdeiro (Gr@v) are the guest editors for a Classical and Quantum Gravity Focus issue on the Impact of EHT Observations for General Relativity. For more information see the focus issue webpage.